package com.xintouyun.springbootredis.config;

import java.util.HashSet;
import java.util.Set;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.data.redis.connection.RedisClusterConfiguration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.xintouyun.springbootredis.utils.RedisUtil;

import redis.clients.jedis.JedisPoolConfig;

@Configuration
@PropertySource("classpath:config/redis.properties")
public class RedisConfig {
	
	@Value("${redis.maxIdle}") 
	private Integer maxIdle; 
	@Value("${redis.maxTotal}") 
	private Integer maxTotal; 
	@Value("${redis.maxWaitMillis}") 
	private Integer maxWaitMillis; 
	@Value("${redis.minEvictableIdleTimeMillis}") 
	private Integer minEvictableIdleTimeMillis; 
	@Value("${redis.numTestsPerEvictionRun}") 
	private Integer numTestsPerEvictionRun; 
	@Value("${redis.timeBetweenEvictionRunsMillis}") 
	private long timeBetweenEvictionRunsMillis; 
	@Value("${redis.testOnBorrow}") 
	private boolean testOnBorrow; 
	@Value("${redis.testWhileIdle}") 
	private boolean testWhileIdle; 
	@Value("${spring.redis.cluster.nodes}") 
	private String clusterNodes; 
	@Value("${spring.redis.cluster.max-redirects}") 
	private Integer mmaxRedirectsac;
	
	/**
     * JedisPoolConfig 连接池
     * @return
     */ 
	@Bean 
	public JedisPoolConfig jedisPoolConfig() { 
		JedisPoolConfig jedisPoolConfig = new JedisPoolConfig(); 
		// 最大空闲数 
		jedisPoolConfig.setMaxIdle(maxIdle); 
		// 连接池的最大数据库连接数 
		jedisPoolConfig.setMaxTotal(maxTotal); 
		// 最大建立连接等待时间 
		jedisPoolConfig.setMaxWaitMillis(maxWaitMillis); 
		// 逐出连接的最小空闲时间 默认1800000毫秒(30分钟) 
		jedisPoolConfig.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis); 
		// 每次逐出检查时 逐出的最大数目 如果为负数就是 : 1/abs(n), 默认3 
		jedisPoolConfig.setNumTestsPerEvictionRun(numTestsPerEvictionRun); 
		// 逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程, 默认-1 
		jedisPoolConfig.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis); 
		// 是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个 
		jedisPoolConfig.setTestOnBorrow(testOnBorrow); 
		// 在空闲时检查有效性, 默认false 
		jedisPoolConfig.setTestWhileIdle(testWhileIdle); 
		return jedisPoolConfig; 
	}
	
	/**
     * Redis集群的配置
    * @return RedisClusterConfiguration
    * @autor lpl
    * @date 2017年12月22日
    * @throws
     */ 
	@Bean 
	public RedisClusterConfiguration redisClusterConfiguration(){ 
		RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration(); 
		//Set<RedisNode> clusterNodes 
		String[] serverArray = clusterNodes.split(","); 
		Set<RedisNode> nodes = new HashSet<RedisNode>(); 
		for(String ipPort:serverArray){ 
			String[] ipAndPort = ipPort.split(":"); 
			nodes.add(new RedisNode(ipAndPort[0].trim(),Integer.valueOf(ipAndPort[1]))); 
		} 
		redisClusterConfiguration.setClusterNodes(nodes); 
		redisClusterConfiguration.setMaxRedirects(mmaxRedirectsac); 
		return redisClusterConfiguration; 
	}

	 /**
     * 配置工厂
    * @Title: JedisConnectionFactory 
    * @param @param jedisPoolConfig
    * @param @return
    * @return JedisConnectionFactory
    * @autor lpl
    * @date 2017年12月22日
    * @throws
     */ 
	@Bean 
	public JedisConnectionFactory JedisConnectionFactory(JedisPoolConfig jedisPoolConfig,RedisClusterConfiguration redisClusterConfiguration){ 
		JedisConnectionFactory JedisConnectionFactory = new JedisConnectionFactory(redisClusterConfiguration,jedisPoolConfig); 
		return JedisConnectionFactory; 
	}
	/**
     * 实例化 RedisTemplate 对象
     *
     * @return
     */ 
	@Bean 
	public RedisTemplate<String, Object> functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) { 
		RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>(); 
		initDomainRedisTemplate(redisTemplate, redisConnectionFactory); 
		return redisTemplate;
	}
     /**
     * 设置数据存入 redis 的序列化方式,并开启事务
     * 
     * @param redisTemplate
     * @param factory
     */ 
	private void initDomainRedisTemplate(RedisTemplate<String, Object> redisTemplate, RedisConnectionFactory factory) { 
		//如果不配置Serializer，那么存储的时候缺省使用String，如果用User类型存储，那么会提示错误User can't cast to String！ 
		redisTemplate.setKeySerializer(new StringRedisSerializer()); 
		redisTemplate.setHashKeySerializer(new StringRedisSerializer()); 
		redisTemplate.setHashValueSerializer(new StringRedisSerializer()); 
		redisTemplate.setValueSerializer(new StringRedisSerializer()); 
		// 开启事务 
		redisTemplate.setEnableTransactionSupport(true); 
		redisTemplate.setConnectionFactory(factory); 
	}
	/**
      * 注入封装RedisTemplate
      * @Title: redisUtil 
      * @return RedisUtil
      * @autor lpl
      * @date 2017年12月21日
      * @throws
      */ 
		@Bean(name = "redisUtil") 
		public RedisUtil redisUtil(RedisTemplate<String, Object> redisTemplate) { 
			RedisUtil redisUtil = new RedisUtil(); 
			redisUtil.setRedisTemplate(redisTemplate); 
			return redisUtil; 
		}
}
